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United Kingdom > Holyhead

Water temperature in Holyhead

Detailed information about the current water temperature in Holyhead. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Holyhead now

52.8

°F

November 29, 22:21

Trend:

stable

Yesterday:

52.5°F

Tomorrow:

52.7°F

Sunrise:

08:07

Sunset:

16:06

Day Length:

7 h. 59 min.

Holyhead in December

Minimum:

47.6°F

Average:

48.6°F

Maximum:

49.9°F

Sea water temperature in Holyhead today

As of now, in Holyhead, the water temperature is 52.8°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is about the same as the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 53.6°F on 2022, while the historical minimum was 51.7°F on 2018.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 52.5°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Holyhead

Date Current Year

actual* / forecast**

 last year 10 years average
Nov 15 55.5°F 55.1°F 55.0°F
Nov 16 55.4°F 55.1°F 54.8°F
Nov 17 55.1°F 55.1°F 54.8°F
Nov 18 55.0°F 55.4°F 54.7°F
Nov 19 54.8°F 55.2°F 54.6°F
Nov 20 54.8°F 54.8°F 54.4°F
Nov 21 54.7°F 54.6°F 54.3°F
Nov 22 54.6°F 54.4°F 54.2°F
Nov 23 53.8°F 54.0°F 53.9°F
Nov 24 53.7°F 53.9°F 53.7°F
Nov 25 53.1°F 53.8°F 53.5°F
Nov 26 53.2°F 53.5°F 53.3°F
Nov 27 53.1°F 52.9°F 53.1°F
Nov 28 52.5°F 52.9°F 52.9°F
Nov 29 52.8°F 52.8°F 52.7°F
Nov 30 52.7°F 52.7°F 52.6°F
Dec 1 52.6°F 52.7°F 52.5°F
Dec 2 52.5°F 52.6°F 52.5°F
Dec 3 52.6°F 52.6°F 52.5°F
Dec 4 52.4°F 53.0°F 52.4°F
Dec 5 52.4°F 52.9°F 52.3°F
Dec 6 52.2°F 52.2°F 52.1°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Holyhead by month

January

February

March

April

May

June

July

August

September

October

November

December

In an average year, Holyhead offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Holyhead was recorded on August 29, 2025, reaching a 63.3°F. While the coldest temperature occurred on March 9, 2018, dipping to 43.0°F. The average readings by season are 48.6°F in Winter, 48.5°F in Spring, 58.0°F in Summer, and 57.8°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Caernarfon 50.8°F 19mi
Bangor 50.2°F 21mi
Conwy 48.7°F 33mi
Douglas 52.3°F 59mi
Aberystwyth 49.5°F 66mi

* current water temperature in this city

** straight line distance from Holyhead